55.4 Air ........................................................................................ 359

55.5 Plants ...................................................................................360

55.6 Humans ................................................................................ 362

55.7 Animals ...............................................................................364

Chapter 56 Zirconium [Zr, 40]............................................................................ 367

56.1 Introduction ......................................................................... 367

56.2 Soils ..................................................................................... 367

56.3 Waters .................................................................................. 368

56.4 Air ........................................................................................ 369

56.5 Plants ................................................................................... 369

56.6 Humans ................................................................................ 369

Chapter 57 Lanthanides ...................................................................................... 371

57.1 Introduction ......................................................................... 371

57.2 Soils ..................................................................................... 373

57.3 Waters .................................................................................. 374

57.4 Air ........................................................................................ 374

57.5 Plants ................................................................................... 376

57.6 Humans ................................................................................ 377

57.7 Animals ............................................................................... 378

Chapter 58 Actinides........................................................................................... 381

58.1 Introduction ......................................................................... 381

58.2 Thorium [Th, 90] ................................................................. 381

58.2.1 Introduction .......................................................... 381

58.2.2 Soils ...................................................................... 382

58.2.3 Waters ................................................................... 382

58.2.4 Air ......................................................................... 383

58.2.5 Plants..................................................................... 383

58.2.6 Humans ................................................................. 383

58.3 Uranium [U, 92] .................................................................. 384

58.3.1 Introduction .......................................................... 384

58.3.2 Soils ...................................................................... 385

58.3.3 Waters ................................................................... 386

58.3.4 Air ......................................................................... 387

58.3.5 Plants..................................................................... 387

58.3.6 Humans ................................................................. 387

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Contents